Author of books:Acting on Principle (1975)Faces of Hunger: An Essay on Poverty, Development and Justice (1986)Constructions of Reason: Explorations of Kant's Practical Philosophy (1989)Towards Justice and Virtue: A Constructive Account of Practical Reasoning (1996)Bounds of Justice (2000)Autonomy and Trust in Bioethics (2002)Rethinking Informed Consent in Bioethics (2007, with Neil Manson)